Nordic skiing includes both cross-country skiing events and the biathlon discipline. Cross-country races range from 2.5 km to 20 km depending on disability and gender. Biathlon combines elements of cross-country skiing and sharp shooting. Athletes ski three or five loops, stopping after each loop to shoot at five targets (10 or 20 targets total, depending on the race format). For each missed shot, the athlete either skis a 150 meter penalty lap or has one minute is added to their final time.